Abstract: A computer sewing machine having a plurality of sewing related operating functions and including voice generating components driven by a drive signal and producing voice information concerning various information items including at least malfunctioning and their explanations and handling and their explanations for the sewing machine, process designation input components for producing signals for starting the process of the information items produced from the voice generating means, response input components including at least two switches selectively operated to produce signals to affirm or negate the information items produced by the voice generating components, reception/discrimination components for receiving the signals from the process designation input components and from the response input components to discriminate the designation of the information items, a stitch control device, malfunction diagnosing components for diagnosing malfunctions of the sewing machine on the basis of control operation of t

Abstract: A method is disclosed in which all patterns to be sewn by an electronic sewing machine are divided into individual unit patterns. Stitch data characteristic of common unit patterns which find application in more than one pattern to be sewn is stored only once in a read-only memory. As a result, wasted space in a read-only memory caused by unnecessary repeated storage of the same stitch data pertaining to common unit patterns is eliminated. This method makes it possible to store more patterns within a read-only memory of a given size and further enables more complicated patterns to be sewn.

Abstract: A pattern stitch sewing machine is disclosed in which enlarged patterns are made possible by storing a plurality of divided part patterns in an electronic memory. Further data for stopping the sewing needle at its lower dead point at the end of each part pattern is provided so that the operator may shift the fabric about the needle in preparation for sewing a succeeding part pattern.