Dynacomware Taiwan Inc.

Dynalab Corp.

Dynacomware

Dynalab (s) Ltd.

Kuo-Young Cheng

A computer-implemented method is disclosed for transforming a binary dot-matrix font to a gray dot-matrix font. The method includes generally five steps. First, a binary dot-matrix outline shape is received, which is designed to render a binary dot-matrix character image on a binary dot-matrix display. The binary dot-matrix outline shape includes one or more curve segments. Second, the received dot-matrix outline shape and the binary dot-matrix character image that can be rendered based on the received outline shape are placed on a lattice coordinate system composed of a plurality of dots. Third, for each of the one or more curve segments, intersecting points at which the curve segment intersects with the plurality of dots in the lattice coordinate system are recorded. Fourth, an anti-aliasing operation is performed on the binary dot-matrix outline shape placed on the lattice coordinate system to obtain a target gray value for each of the dots that are intersected by the one or more curve segments. Fifth, a collection of the target gray values for all of the intersected dots are recorded as a gray dot-matrix image font.

Method and system for generating gray dot-matrix font from binary dot-matrix font

A method and system are provided for compressing and/or decompressing a set of dot-matrix font characters. According to a compression method, each dot-matrix font character is divided into a horizontal image including horizontal (stroke) image pattern(s), a vertical image including vertical (stroke) image pattern(s), and a residual image including residual image pattern(s) obtained by removing the horizontal and vertical images from the original character. Then, the Huffman coding is applied to each of a set of the horizontal image patterns, a set of the vertical image patterns, and a set of the residual image patterns, respectively, to produce compressed horizontal codes for the horizontal image patterns in a horizontal Huffman table, compressed vertical codes for the vertical image patterns in a vertical Huffman table, and compressed residual codes for the residual image patterns in a residual Huffman table. The compressed horizontal, vertical, and residual codes are selectively combined into a bit string that represents a compressed form of each character.

Method and system for dot-matrix font data compression and decompression

A method and computer graphical user interface tool for generating and/or modifying character font data to be suitable for low-resolution display are provided. The method generally includes four steps. First, a set of characters to be displayed on a low-resolution display is received. Each character is formed with one or more strokes/glyphs, and all of the strokes/glyphs are represented by a set of basic strokes/glyphs, wherein each basic stroke/glyph is defined by key points and width values. Second, the received set of characters is projected on a low-resolution pixel matrix screen having two-dimensional coordinates and corresponding to the low-resolution display. Third, each stroke/glyph forming the set of characters is redefined, with key points and/or width values of the stroke/glyph are adjusted according to predefined rules, to thereby form a redefined set of characters. Fourth, the redefined set of characters are rendered according to predefined rendering criteria.

Method for generating stroke-based font characters for a low-resolution display

A system for providing non-standard characters over a network is provided. The system includes: (a) a non-standard character server coupled to the network, (b) a character database coupled to the server, and (c) one or more client terminals coupled to the network. A user of each client terminal may create a non-standard character and send a non-standard character index issuance request for the created non-standard character to the non-standard character server. The non-standard character server receives the non-standard character index issuance request including an image of the non-standard character created by the client terminal, automatically assigns an index number to the received image of the non-standard character, stores the received image of the non-standard character and the index number assigned thereto in the character database, and sends the index number assigned to the received image of the non-standard character to all of the client terminals on the network.

Self-sustained asian font server and service

A method, system, and computer-readable medium containing computer-executable instructions are provided, for randomly relocating text character images of a scanned-in Asian character document to produce a shuffled image, wherein the meaning of text in the shuffled image is not understandable although individual characters forming the text in the shuffled image are recognizable. In one embodiment, the method includes generally four steps: (1) dividing an Asian character document image into a text image portion and a non-text image portion; (2) structuring the text image portion into a multiple resolution-level pyramid; (3) extracting shuffleable character images by analyzing the multiple-resolution-level pyramid; and (4) shuffling some or all of the extracted shuffleable character images to create a shuffled image. The shuffled (e.g., encoded) image can be reshuffled (e.g., decoded) back to the original text image portion of the Asian character document image, and combined with the non-text image portion to restore the Asian character document image.

Method of shuffling text in an Asian document image

A method, computer graphical user interface tool, and computer-readable medium for generating a set of characters for display in gray scale are provided, wherein each character comprises one or more strokes/glyphs, and each stroke/glyph is defined in silhouette-oriented representation. The method includes generally six steps. First, a set of characters is displayed, wherein each character comprises one or more strokes/glyphs, and all of the strokes/glyphs are represented by a set of basic strokes/glyphs, each basic stroke/glyph topographically representing a set of similarly-shaped strokes/glyphs. Second, each basic stroke/glyph is defined in silhouette-oriented representation. Third, each stroke/glyph forming each character is defined in silhouette-oriented representation. Fourth, the set of characters is rendered in gray scale. Fifth, the proper appearance of the characters is verified. Sixth, if the appearance is not satisfactory, the method returns to the second step and repeats the subsequent steps until the proper appearance of the characters is verified.

Silhouette-oriented gray font generation

A method for automatically converting an outline font character into a glyph-based font character using a set of predefined basic glyphs stored in a glyph database is provided. Each basic glyph is predefined as a program for rendering the basic glyph for output. Additionally, each basic glyph is associated with a glyph signature consisting of feature points, and script sentences that obtain key points and width values based on the feature points. According to the automatic font conversion method, first, an outline font character to be redefined is captured. Then, one glyph is selected from the captured character. Thereafter, feature points are identified along the outline of the selected glyph and stored in a glyph signature. Next, the glyph database is searched and a basic glyph that topographically matches the selected glyph is retrieved. Next, the script sentences associated with the retrieved basic glyph are used together with the identified feature points of the selected glyph to obtain key points and width values for the selected glyph. Thereafter, the selected glyph with its key points and width values is stored as a program for rendering the selected glyph for output. At this point, the selected glyph is fully defined. The process of defining a selected glyph is repeated for all glyphs included in the captured outline font character, i.e., until the outline font character is fully redefined based on its glyphs into a glyph-based font character. The glyph-based font is suited for font communication between different systems having different resolutions.

System and method for converting an outline font into a glyph-based font

A system, method, and computer-readable medium for generating a glyph-based outline font are provided, which allow for font communication between different devices having various (high and low) resolutions. A method selects a character for display on the output device. The character consists of one or more glyphs, and each glyph forming the character is predefined by key points, width values, feature points that have predefined spatial relationship to the key points and width values, and curve ratios prestored in a curve level table. Next, the method determines the resolution of an output device. Then, for each glyph forming the character, the method retrieves curve ratios from the prestored curve level table according to the determined resolution of the output device. Curve ratios are used to create curve segments, which form the outline of the selected glyph. Finally, the method renders the glyphs of the selected character on the output device according to the key points, the width values, the feature points, and the retrieved curve ratios.

Glyph-based outline font generation independent of resolution

A method and apparatus for producing a stroked-based font defined by a stroke representation displayable in high-resolution and low-resolution space. The stroke representation includes defining a basic stroke with key points and width values as its primary parameters and feature points and curve features as the secondary parameters. Hinting information for certain key points provide information for displaying quality strokes in low resolution space. A CAD tool allows a font designer to easily select the parameters for the design of basic strokes.

Stroke-based font generation

A method, computer system and computer-readable medium for generating an outline font of Asian language characters. The Asian language characters are defined by basic strokes. The basic strokes are identified by a plurality of key points and at least one width value. The computer system includes memory and a processor coupled to at least one output device. The processor retrieves a set of basic stroke defined characters and identifies a set of similar glyphs in the retrieved set of characters. Each glyph includes a set of basic strokes. The processor selects topographically representative glyphs from each identified set of similar glyphs, determines the intersecting points of the plurality of overlapping basic strokes for each selected glyph, generates outline data for each selected glyph according to the determined intersecting points and stores the generated outline data in memory. The processor also renders a character selected for display on an output device according to the stored generated outline data.

Stroke-based glyph-outline font generation in low/high resolution space

A method and apparatus for producing a stroked-based font defined by a stroke representation displayable on high or low-resolution output device. The stroke representation includes defining a basic stroke with key points and width values as its primary parameters and feature points and curve ratios stored in a predefined curve level tree type data structure as its secondary parameters. Curve ratios are retrieved from the curve level table according to resolution level of the output device. Also, hinting information for certain key points provides for a better displayed stroke in low resolution space. Hinting information is activated according to predefined data associated with the curve level table. A CAD tool allows a font designer to easily select the parameters for the design of basic strokes and stroke shapes. The CAD tool presents a real-time display of sample characters at various bitmap sizes during font creation.

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Taichung Hsien, Taiwan

Kuo-Young Cheng