Test apparatus and methods for a digital image scanning system

Facsimile and static presentation processing – Facsimile – Facsimile measuring – testing – or calibrating

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358443, 358445, 348180, 348181, 348187, 36457101, H04N 100, H04N 140, H04N 1700, G01C 2500

Patent

active

057424039

ABSTRACT:
In a digital image scanning system, dynamic testing of digital and analog channels is performed by injecting photosite-by-photosite variable test data to simulate imager signals. The test data is stored at photosite related addresses in random access memory means and are accessed by a pixel (photosite) counter for output to the channels under test.

REFERENCES:
patent: 4509077 (1985-04-01), Therrien
patent: 4631598 (1986-12-01), Burkhardt et al.
patent: 4852063 (1989-07-01), McNutt
patent: 5086343 (1992-02-01), Cook et al.
patent: 5260784 (1993-11-01), Kamiyama et al.
patent: 5309376 (1994-05-01), Barraco et al.

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