Apparatus and method for creating and modifying stitching data u

Details Apparatus and method for creating and modifying stitching data u Apparatus and method for creating and modifying stitching data u

1995-09-14

1997-12-02

Nerbun, Peter

Sewing

Special machines

Embroidering

112458, 11247505, 11247519, D05C 502

Patent

active

056924488

ABSTRACT:
A method and apparatus, for use with a sewing machine, for modifying stitching data representing a pattern that the sewing machine is to sew. The stitching data includes non-stitching feed data, in accordance with which the sewing machine feeds a needle without sewing from an origin position to a sewing start position, and seam data including information defining feeding directions and feed amounts per stitch, in accordance with which the sewing machine sews the pattern. A data identifying device identifies the seam data of the stitching data. A seam data changing device converts, in accordance with an enlargement/reduction ratio stored in a storage device of the sewing machine, the seam data identified by the data identifying device into new seam data representing a new pattern which is an enlarged version of the original pattern enlarged or reduced relative to the sewing start position, without modifying the non-stitching feed data. A non-stitching feed data creating device creates new non-stitching feed data. Also, a center determining or calculating device determines or calculates the center of the new pattern, so that the seam data changing device converts the seam data with reference to this center.

REFERENCES:
patent: 4582006 (1986-04-01), Yamane
patent: 4665847 (1987-05-01), Takano et al.
patent: 5239475 (1993-08-01), Shigeta et al.

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