Patent ID: 8061285

Claim:
A sewing machine for stitching a stippling pattern that is to be depicted in a square embroidery stitching area comprising; a memory for storing therein stitch data for stitching a stippling pattern, a stitching means for stitching the stippling pattern, a control means for controlling the operation of the stitching means, thereby to stitch the stippling pattern in accordance with the stitch data stored in the memory, the stitch data stored in the memory for stitching the stippling pattern being provided to form convex portions as are depicted substantially in contact with a plurality of points of first group respectively, the points of first group being provided on one of the opposite sides of the square embroidery stitching area, and the stitch data being provided further to form concave portions as are depicted with a predetermined space provided away from a plurality of points of second group respectively, the points of second group being provided on said one of the opposite sides of the square embroidery stitching area, said stitch data being provided to form concave portions as are depicted with a predetermined space provided away from a plurality of points of first group respectively, the points of first group being provided on the other of the opposite sides of the square embroidery stitching area, and said stitch data being provided further to form convex portions as are depicted as arranged substantially in contact with a plurality of points of second group respectively, the points of second group being provided on said other of the opposite sides of the square embroidery stitching area.