Resources Contact Us Home
Electronic pattern control for a sewing machine

Image Number 7 for United States Patent #4141305.

A logic circuit generates in succession the stitch-control data for the successive stitches of a selected stitch pattern. The logic circuit does not store simultaneously all the stitch-control data for all the stitches of all the selectable stitch patterns, in the way done by conventional addressable random-access stitch-pattern memories. Instead, the logic circuit assumes successive states, in response to successive machine-synchronized pulses. In each state it generates, in the sense of bringing into existence for the first time, stitch-control data for the next stitch to be produced, this stitch-control data being derived from data related to a preceding stitch, e.g., the stitch-control data for the preceding stitch. The number of logic elements needed is low compared to that needed for a random-access stitch-pattern memory of the type storing all the stitch-control data for all the stitches of all the selectable patterns.

  Recently Added Patents
Artifact removal in nuclear images
Hydrolases, nucleic acids encoding them and methods for making and using them
Fusion of road geometry model information gathered from disparate sources
Methods and apparatus for achieving multiple bit rates in passive optical networks
Method and structure for image local contrast enhancement
Switching power supply apparatus with overcurrent limiting and prolonged holding time
Indexing, relating and managing information about entities
  Randomly Featured Patents
Image-sensing server and control method and storage medium therefor
Process for separation and preconcentration of radium from water
Mistletoe extract and method
Method for simulating transient heat transfer and temperature distribution of aluminum castings during water quenching
Electrical connector assembly
Prime mover fuel efficiency control system
Generating simulated neural circuits in a voxel space
Three-dimensional morphology by magnetic resonance imaging
Delaying swelling in a downhole packer element
Flat panel display and driving method with DC level voltage generated by shift register circuit