Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1990-09-25
1992-07-21
Groody, James J.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358101, 358107, 356237, 356239, 250572, 250571, 382 8, H04N 718
Patent
active
051327910
ABSTRACT:
An optical inspection system inspects individual sheets having scrolled and unscrolled edges for defects in a production line with high transfer velocities. Each of the individual sheets are delivered in a production line with some spacing between them and potentially with some degree of skewness and offset from the production center line. The inspection system of the present invention utilizes a formed viewing window over which individual sheets from the production line are delivered. As each sheet is delivered over the formed viewing window, the undersurface of each individual sheet is uniformly and continuously illuminated along the length of the formed viewing window with high intensity diffused light. The reflected light from the surface of each moving individual sheet is captured by at least one video camera. As the sheet moves across the formed viewing window, a line-by-line video image is captured and stored according to a rectangularization technique which eliminates the need for customized masks. An analyzer receives the stored information and analyzes the stored information for the presence of defects.
REFERENCES:
patent: 3794427 (1974-02-01), Shibata et al.
patent: 4223346 (1980-09-01), Neiheisel et al.
patent: 4399554 (1983-08-01), Pekins, III et al.
patent: 4539587 (1985-09-01), Eby et al.
patent: 4555727 (1985-11-01), Nun et al.
patent: 4578810 (1986-03-01), MacFarlane et al.
patent: 4724481 (1988-02-01), Nishioka
patent: 4811410 (1989-03-01), Amin et al.
patent: 4943734 (1990-07-01), Johnson et al.
patent: 4950911 (1990-08-01), Williams et al.
patent: 4972494 (1990-11-01), White et al.
patent: 4974077 (1990-11-01), Kusaba
patent: 4975971 (1990-12-01), Ohnishi
patent: 5068799 (1991-01-01), Jarrett, Jr.
Brown Carey
Messerschmidt Daniel J.
Minet H. Kent
Wertz Ronald D.
Ball Corporation
Groody James J.
Lee Michael H.
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