Apparatus for generating an image from a digital video signal

Facsimile and static presentation processing – Static presentation processing – Attribute control

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Details

C358S296000, C358S296000, C358S296000

Reissue Patent

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RE038942

ABSTRACT:
An apparatus for generating a high quality image from a digital video signal includes a system for gamma correcting the digital video signal with a digital look up table and for converting the resultant digital signal to an analog video signal. Another circuit generates a triangular wave reference pattern signal and a comparator compares the analog video signal with the triangular wave reference pattern signal to form a pulse-width-modulated signal. A raster scanning print engine producing, for example, a laser beam, scans over a recording medium in accordance with the pulse-width-modulated signal, thereby forming an image of high quality on the recording medium of a print engine. This apparatus can also be used with an analog video signal by first converting the analog video signal to a digital video signal with an analog to digital converter.

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“Declaration Submitted Pursuant to 37 C.F.R. §1.56 and M.P.E.P. §609” by Applicants.
Science,vol. 224, p. 44.
Press release of Demonics Ltd., Feb. 24, 1984.
Four (4) pages prepared on Demonics ETP-1 Electronic Technical Publishing System.

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