Data processor for use in sewing machine

Claim 1

A data processor for processing input data to produce stitch pattern data used for sequentially stitching letters on materials with a sewing machine, comprising: first memory means for storing stitch pattern data regarding stitch letters, the stitch letters being classified into a plurality of groups, each containing a set of letters having essentially the same outline profile different from that of the letters in another group, and for storing character identification codes identifying the stitch letters and their outer profiles; input means for sequentially entering letters to be stitched and outputting letter codes indicative of the entered letters; second memory means for storing preselected outer profiles of the stitch letters in relation to a stitching sequence in which the letters are to be stitched; readout means for reading from said first memory means the stitch pattern data identified by the character identification codes in accordance with the letter codes outputted from said input means and the outer profiles stored in said second memory means; and third memory means for storing the character identification codes read from said first memory means by said readout means.