Patent EP0385508A2 successfully refreshed from Google Patents.
EP0385508A2
Expired / Lapsed
EP
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Device for generating dot pattern data
Assignee: Seiko Epson Corp
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Filing: 1990-03-02
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Granted: —
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Expires: 2010-03-02
Abstract
Abstract There is disclosed a dot pattern data generating device including: a character generator, constructed to be readable by character code data, for storing data representing a character pattern according to existence or non-existence of dots; a region readout circuit (11) for reading a local pattern of a given region with one concerned pixel being centered from a character dot pattern read from the character generator; an arithmetic circuit (12-15) for computing horizontal and vertical sizes from the local pattern; and a pattern generating circuit (17) for generating a plurality of dot with respect to one dot of an original pattern on the basis of the horizontal and vertical sizes. Based on this construction, configurations―left down, right down, left up or right up―of the dots shaping an oblique line are judged from the horizontal and vertical sizes by an arithmetic operation. The character pattern of an enlarged size is generated at a high velocity without enlarging stepped portions of the oblique line by generating enlargement dots corresponding thereto.
Inventors
- 👤 Masatoshi C/O Seiko Epson Corporation Matsuhira
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 23:15
CPC Classifications
G; G06; G06T; G06T11/00; G06T11/20; G06T11/23; G06K; G06K15/00; G06K15/02; G09; G09G; G09G5/00; G09G5/22; G09G5/24; G09G5/28; G06K2215/00; G06K2215/0002; G06K2215/004; G06K2215/0042; G06K2215/0045; G06K2215/0054; G06K2215/0057; G06K2215/006
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
109 words
A device for generating dot pattern data, comprising: a character generator, so constructed as to be readable in accordance with character code data, for storing data representing a character pattern according to existence or non-existence of dots; a region readout means for reading a local pattern of a given region with one concerned pixel being centered from a character dot pattern read from said character generator; an X-value/Y-value arithmetic means for computing horizontal and vertical sizes from said local pattern; and a pattern generating means for generating a plurality of dots with respect to one dot of an original pattern on the basis of said horizontal and vertical sizes.
Claim 2
Independent Claim
109 words
A device for generating dot pattern data, comprising: a character generator, so constructed as to be readable in accordance with character code data, for storing data representing a character pattern according to existence or non-existence of dots; a region readout means for reading a local pattern of a given region with one concerned pixel being centered from a character dot pattern read from said character generator; an X-value/Y-value arithmetic means for computing horizontal and vertical sizes from said local pattern; and a pattern generating means for generating a plurality of dots with respect to one dot of an original pattern on the basis of said horizontal and vertical sizes.
Claim 3
Independent Claim
138 words
A device for generating dot pattern data, comprising : a character generator, so constructed as to be readable in accordance with character code data, for storing data representing a character pattern according to existence or non-existence of dots; a region readout means for reading a local pattern of a given region with one concerned pixel being centered from a character dot pattern read from said character generator; an X-value/Y-value arithmetic means for computing horizontal and vertical sizes from said local pattern; an addition/deletion determining means for determining an addition or deletion of the dots depending on said horizontal and vertical sizes; and a pattern generating means for generating a plurality of dots with respect to one dot of an original pattern in accordance with said horizontal and vertical sizes and a signal transmitted from said addition/deletion determining means.
Claim 4
Independent Claim
138 words
A device for generating dot pattern data, comprising : a character generator, so constructed as to be readable in accordance with character code data, for storing data representing a character pattern according to existence or non-existence of dots; a region readout means for reading a local pattern of a given region with one concerned pixel being centered from a character dot pattern read from said character generator; an X-value/Y-value arithmetic means for computing horizontal and vertical sizes from said local pattern; an addition/deletion determining means for determining an addition or deletion of the dots depending on said horizontal and vertical sizes; and a pattern generating means for generating a plurality of dots with respect to one dot of an original pattern in accordance with said horizontal and vertical sizes and a signal transmitted from said addition/deletion determining means.
Claim 5
Independent Claim
169 words
A device for generating dot pattern data, comprising: a character generator, so constructed as to be readable in accordance with character code data, for storing data representing a character pattern according to existence or non-existence of dots; a region readout means for reading a local pattern of a given region with one concerned pixel being centered from a character dot pattern read from said character generator; an X-value/Y-value arithmetic means for computing horizontal and vertical sizes from said local pattern; an addition/deletion determining means for determining an addition or deletion of dots depending on said horizontal and vertical sizes; a character type selecting means for selecting whether an operation of said addition/deletion determining means is made effective or ineffective according to character pattern types; and a pattern generating means for generating a plurality of dots with respect to one dot of an original pattern in accordance with said horizontal and vertical sizes, a signal transmitted from said addition/deletion determining means and a signal from said character type selecting means.
Claim 6
Independent Claim
169 words
A device for generating dot pattern data, comprising: a character generator, so constructed as to be readable in accordance with character code data, for storing data representing a character pattern according to existence or non-existence of dots; a region readout means for reading a local pattern of a given region with one concerned pixel being centered from a character dot pattern read from said character generator; an X-value/Y-value arithmetic means for computing horizontal and vertical sizes from said local pattern; an addition/deletion determining means for determining an addition or deletion of dots depending on said horizontal and vertical sizes; a character type selecting means for selecting whether an operation of said addition/deletion determining means is made effective or ineffective according to character pattern types; and a pattern generating means for generating a plurality of dots with respect to one dot of an original pattern in accordance with said horizontal and vertical sizes, a signal transmitted from said addition/deletion determining means and a signal from said character type selecting means.
References Cited (Backward Citations)
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