Facsimile and static presentation processing – Static presentation processing – Data corruption – power interruption – or print prevention
Reexamination Certificate
2006-12-12
2006-12-12
Lamb, Twyler (Department: 2627)
Facsimile and static presentation processing
Static presentation processing
Data corruption, power interruption, or print prevention
C358S468000, C358S448000, C358S406000, C358S504000, C358S001100
Reexamination Certificate
active
07148976
ABSTRACT:
A system which provides a continuous indication of the operating integrity, of an entire image capture and processing system without the need for interfering with document throughput or the need for special paper test documents to be inserted into the scanning path. The system monitors performance from document presentation and scanner output, through image processing. It schedules maintenance of the system on an actual as needed basis. It continuously collects and monitors the imaging characteristics from work documents being processed and calculates a projected date at which maintenance will be required in order to retain system operating integrity. Minimum and maximum video values are collected from the output of each picture element sensor for each document. A running indication of system integrity is stored in a white trend array and a black trend array. These arrays are adjusted after an interval of time or one or more documents have been processed. The change in value of a trend array element depends upon whether the change indicated by the processing of the previous document indicates a deterioration of performance or a return to acceptable performance by the image capture system. After a further interval, the arrays are shifted in parallel to develop a maximum trend and a minimum trend for each picture element.
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Fellows Christine A.
Hallman Bina M.
Hillery John R.
Moon Rodney G.
Prakash Ravi
Gundel Norman L.
Hesse Karl O.
International Business Machine Corporation
Lamb Twyler
Safaipour Houshang
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