Character font converting system
AssigneeSharp Kabushiki Kaisha
InventorKunio Yoshida
Life of this patent
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Abstract
A system for converting a character font dot pattern includes a peripheral dot detection circuit for detecting peripheral dots of a font pattern stored in a memory and subjects the detected peripheral dot pattern to a conversion operation for converting the dot pattern to a new orientation. The system further includes a paint over circuit which fills in the interior of the converted peripheral dot pattern to complete the conversion process.
Claims3
A system for converting a dot character font having a first orientation into a character font having a second orientation, comprising:
- font memory means for storing an original dot character font having said first orientation;
- peripheral dot detection means for detecting peripheral black dots of said dot character font stored in said font memory means including,
- address means for sequentially addressing locations in said font memory means,
- means for detecting whether an addressed location contains a black dot, and
- means for determining whether a black dot detected by said means for detecting is a peripheral black dot by detecting whether at least one location adjacent to said addressed location contains a white dot;
- font conversion means for converting the location of peripheral black dots detected by said peripheral dot detection means to said second orientation according to predetermined conversion parameters;
- converted font pattern memory means for storing the converted peripheral black dot pattern produced by said font conversion means;
- and
- paint-over means for converting white dots within said stored peripheral black dot pattern into black dots to complete the conversion of said original dot character font.
A method for converting a dot character font having a first orientation into a character font having a second orientation, comprising the steps of:
- storing an original dot character font having said first orientation in a font memory;
- detecting peripheral black dots of said dot character font stored in said font memory including the steps of,
- sequentially addressing locations in said font memory means,
- detecting whether an addressed location contains a black dot, and
- determining whether a black dot detected in said step of detecting whether an addressed location contains a black dot is a peripheral black dot by detecting whether at least one location adjacent to said addressed location contains a white dot;
- converting the location of detected peripheral black dots to said second orientation according to predetermined conversion parameters;
- storing the converted peripheral black dot pattern so produced in a converted font pattern memory;
- and
- converting white dots within said stored peripheral black dot pattern into black dots to complete the conversion of said original dot character font.
Dependencies are inferred from the claim text.