B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
341/47
B41F 13/12 (2006.01) B41F 13/02 (2006.01) B41F 13/60 (2006.01) B41F 33/00 (2006.01)
Patent
CA 1305235
ABSTRACT The invention provides a cutoff control system hav- ing a capture range equal to the length of the image (signa- ture) which is highly tolerant of spurious transitions, such as lateral shifting and instantaneous interruptions of the web. The highly pipelined hardware correlation unit, cooper- ating with several high speed RAM devices having independent address generators, is used to cross-correlate new patterns with a reference pattern. An illustrated system for relat- ing a cyclical machine operation to the position of images on a web includes position adjustment means responsive to control signals for varying the effective position of the machine operation along the moving web, means for generat- ing image signatures indicative of the image at respective sampling intervals during the matching operation cycle for respective machine cycles, means for selectively generating reference pattern indicia from a first image signature and for selectively generating comparative indicia from a succ- essive image signature, means for generating correlation co- efficients in accordance with the differences between the reference pattern and shifted versions of the comparative indicia, means for processing the correlation coefficients to determine which of the comparative indicia produced the largest correlation coefficient and generating an indicating signal in response thereto, and means for generating the control signals to the position adjustment means in accord- ance with the indicating signal.
550745
Brengauz Alexander
Reynolds Bruce A.
Baker Harold C.
Brengauz Alexander
Quad/tech Inc.
Reynolds Bruce A.
LandOfFree
Cutoff control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cutoff control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cutoff control system will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1317022