Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1987-05-21
1988-08-30
Shaw, Clifford C.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358283, H04N 121
Patent
active
047681012
ABSTRACT:
A method of generating a half-tone representation of an image from digital data defining the color content of pixels arranged in a series of substantially parallel, overlapping input scan lines comprises exposing at least one record medium to an exposing beam in a series of substantially parallel, overlapping output scan lines each corresponding to a respective input scan line. The exposing beam is modulated under the control of the digital data and half-tone information. The intensity of the exposing beam, which typically includes a number of subsidiary beams, is such that an area of the record medium will only record a half-tone dot or a portion of a half-tone dot after all output scan lines passing through that area have been exposed.
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Crosfield Electronics (USA) Limited
Shaw Clifford C.
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