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
Compounds and their salts specific to the PPAR receptors and the EGF receptors and their use in the medical field
Nanogap device for field enhancement and a system for nanoparticle detection using the same
Fluid handling structure, a lithographic apparatus and a device manufacturing method
Glycosyltransferase promoter
Method for treating rheumatoid arthritis by administering an anti-IL-6 antibody and methotrexate
Battery loading and unloading mechanism
Programming method of non-volatile memory device
  Randomly Featured Patents
Process for integrating hemispherical grain silicon and a nitride-oxide capacitor dielectric layer for a dynamic random access memory capacitor structure
Method to reduce contact resistance of N-channel transistors by using a III-V semiconductor interlayer in source and drain
Sample presentation apparatus for mass spectrometry
Method and apparatus for providing a time adjustment to a wireless communication system
Front face of a vehicle wheel
Density detection using real time discrete photon counting for fast moving targets
Method of making a semiconductor device having a planarized fluoropolymer passivating layer with selectively implanted charged particles
Method and apparatus for generating an area constraint for a module in a programmable logic device
High speed switching architecture