Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1988-09-30
1989-05-30
Groody, James J.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 60, 358 63, H04N 910
Patent
active
048356018
ABSTRACT:
Disclosed is a laser beam scanning system having a laser source for producing a plurality of laser beams each having a different wavelength which are deflected by an acousto-optical deflector to scan an object in at least one direction to produce a video signal representative of the object color image. Because of color dispersion inherent to the acousto-optical deflector, the angle of deflection is dependent on the wavelength of the laser beams. To compensate for the color dispersion, a signal processor is provided to process the video signals derived from the scanning of the object in such a manner that the video signals are processed differently in terms of scanning time one from the other and are output using the same timing.
REFERENCES:
patent: Re29670 (1978-06-01), Spaulding
patent: 3597536 (1971-08-01), Fowler
patent: 4093976 (1978-06-01), Das
patent: 4274109 (1981-06-01), Whitby
patent: 4714956 (1987-12-01), Yin
patent: 4720747 (1988-01-01), Crowley
Article entitled "Optics for Laser Raster", by Robert H. Webb, pp. 3680-3683, Applied Optics, vol. 23, No. 20/15, Oct. 1984.
Adams Bruce L.
Faris E. Anne
Groody James J.
Kowa Company Ltd.
Wilks Van C.
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