JPH0590563U - Outline font expansion device - Google Patents

Abstract

(57) [Summary] [Purpose] To develop outline fonts into dot image data at high speed. An outline font expansion device equipped with at least one work image memory divided into blocks of the size of dot image data of one font, and an expansion processor for expanding vector data into dot font data.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an outline font developing device, and more particularly to an outline font developing device suitable for generating a dot image from a character or graphic outline font at high speed.

[0002]

[Prior Art]

 The conventional outline font expansion device is composed of the blocks as shown in FIG. 3. First, the outline font data (vector data) for the input character or figure 12 is read from the font ROM 13, and the font expansion unit is read. At 34, contour drawing is performed while interpolating between font data, the desired font is converted by coordinate conversion, and the dot image of the required characters and figures is generated by filling the inside of the contour. The generated dot image data is stored in the output memory 16.

Such processing is sequentially performed for all characters.

[0004]

[Problems to be solved by the device]

 Since the conventional outline font expansion device is configured as described above and is centrally controlled by the CPU 11, the dot image data of the input character data can be stored in the output memory until the font expansion is completed. Therefore, it was difficult to deploy the outline font at high speed.

[0005]

[Means for Solving the Problems]

 The present invention has been made to solve the above-mentioned problems, and at least one work image memory whose inside is divided into blocks of a size capable of storing approximately one font of dot image data, It is equipped with an expansion processor that expands vector data into dot font data, and a main CPU. The image memory for work is configured so that writing from the expansion processor and reading by the main CPU are possible. The main CPU can transfer the dot font data previously stored in the work image memory to the output image memory while the necessary characters are expanded to font data and stored in the work image memory. It is designed to develop a series of fonts at high speed.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. 1 and 2. The input character string 12 to be converted is input (step 210), and the outline font data (vector data) for the input character string 12 is input. ) Is read from the font ROM 13 (step 211), and a font processor 14 having a CPU that operates independently of the main CPU 11 internally draws an outline while interpolating between the font data, and transforms it into the desired font. The dot image data of the input character is generated by converting and filling the inside of the contour (step 212), and stored in the work memory 15 for each character (step 213).

The work memory 15 is divided into blocks each having a size of one character, and the stored dot image data for each character is read block by block under the control of the main CPU 11 (step 222) and transferred to the output memory 16 (step 223).

Therefore, the dot image data of the input character data can be stored in the output memory in parallel with the font development, and the outline font can be developed at high speed.

[0009]

[Effect of the device]

 As described above, the present invention has the effect that the dot image data of the input character data can be stored in the output memory in parallel with the font expansion, and the outline font expansion can be performed at high speed. Have.

[Brief description of drawings]

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

FIG. 2 is a flowchart of an embodiment of the present invention.

FIG. 3 is a block diagram showing a conventional example.

[Explanation of symbols]

 11 Main CPU 12 Input Character String 13 Font ROM 14 Font Processor 15 Work Memory 16 Output Memory 34 Font Expansion Unit

Claims (1)

[Scope of utility model registration request] 1. An outline font expansion device for expanding vector data of an outline font into a dot font and storing the expanded data in an image memory, wherein at least one of which is internally divided into blocks of arbitrary size. Each work image memory, a processor for developing vector data into a dot font, and a main CPU are provided, and the work image memory can be written from the development processor and read by the main CPU. An outline font expansion device characterized by being connected and configured.