Resources Contact Us Home
Electronic pattern control for a sewing machine

Image Number 8 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
Newly identified human rhinovirus of HRV-C and methods and kits for detecting HRV-Cs
System and method for providing an extended platform for an operating system
Synchronous rectifier network unit circuit and method
Device for producing a connection grid with an integrated fuse
Delivery of captions, content advisory and other data through digital interface
System and method for converting biomass to ethanol via syngas
Scanning optical positioning system with spatially triangulating receivers
  Randomly Featured Patents
Modifying double stranded DNA to enhance separations by matched ion polynucleotide chromatography
Enhanced radiant output burner
Large X-ray detector variable centering for angulation enhancement
Method and apparatus for computer-supported generation of at least one artificial training data vector for a neural network
Conveyor device for transferring freshly printed sheets
Organic EL display device and manufacturing method thereof
Front face for a vehicle wheel
Light-intercepting blade for a light control device
Method of enhancing clear field phase shift masks by adding parallel line to phase 0 region