Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2011-03-15
2011-03-15
Welch, Gary L. (Department: 3765)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C112S271000, C112S277000
Reexamination Certificate
active
07908027
ABSTRACT:
A sewing machine including a needle bar that has a sewing needle attached in a lower end thereof; a needle-bar vertical drive mechanism that vertically moves the needle bar by a sewing machine motor via a sewing machine motor main shaft; an imaging unit that captures image of at least the sewing needle and a moving object that is in close proximity of the sewing needle; a distance calculating portion that calculates a distance between the sewing needle and the moving object based on image data captured by the imaging unit; a judging portion that makes a judgment that the distance calculated by the distance calculating portion is equal to or less than a predetermined distance; and a control portion that controls execution of a predetermined safety operation based on a judgment result of the judging portion.
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Hamajima Eiichi
Hanai Toshihiro
Ito Eiichi
Nishimura Yoshio
Noguchi Chikahisa
Brother Kogyo Kabushiki Kaisha
Durham Nathan E
Oliff & Berridg,e PLC
Welch Gary L.
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