Patent US 6,288,725

Font information includes the stroke type, the skeleton point and the stroke tip type information (Types I, II, and III) shared by various kinds of font variants. Each variant is added with horizontal and vertical stroke widths, and the stroke shape control information (803 and 805-810) expressed as their functions. The stroke skeleton point widening (Wx, Wy, Wz, Wr, and Wt) and the follow-up information, the stroke width non-linear scaling information and the composite stroke information of the primary character style based on the scaling proportion and the space occupation information can be added. The restoration method includes processes, such as the determination of the stroke shape control information and the outline control information, the widening adjustment of the skeleton points, the determination of the follow-up points, the adjustrnent of the present stroke width, the isometric adjustment of the composite strokes, and the re-adjustment of the stroke width, which avoids strokes merging together.