Electronic control sewing machine

A sewing machine having electronically controlled means to change the lateral position of the needle relative to the fabric to be sewn, comprising

• a first memory (ROM1) for storing control data for producing different patterns of stitches including data for producing straight stitches, said first memory having input terminals for receiving address signals and output terminals for releasing control signals for lateral swing of the needle and fabric feed control signals;
• stitch pattern selecting means coupled to the input terminals of said first memory to release at the output terminals of the same a set of selected control signals;
• a second memory (ROM2) for storing automatic setting data specific to individual stitch patterns stored in the first memory, said second memory having input terminals connected to said pattern selecting means and output terminals for releasing automatic setting data for the lateral swing of the needle and fabric feed automatic setting data;
• operator controlled setting means (VR1, VR2) for releasing optional needle swing setting data and fabric feed setting data for the selected stitch patterns independently from the automatic setting data in the second memory;
• and
• calculating means (AU1, AU2) having input terminals for receiving the control signals from the first memory (ROM1), the automatic setting data from the second memory (ROM2) or the setting data from the setting means (VR1, VR2) to calculate the stich coordinates for each of the stitches of the selected pattern, and output terminals connected to said electronically controlled means.