Apparatus for scanning and recording a color image having a scan

Details Apparatus for scanning and recording a color image having a scan Apparatus for scanning and recording a color image having a scan

1987-09-08

1990-06-26

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 42, H04N 146, H04N 907

Patent

active

049376632

ABSTRACT:
A scanning apparatus for scanning and recording a color image. A source of light having a certain flicker rate illuminates the color image, and a scanning element, such as a charge-coupled device, scans the color image during scanning periods to generate electrical signals which are representative of the color image. Each of the scanning periods is equal to the reciprocal of the flicker rate to eliminate effects of the flicker on the electrical signals. A color filter with different-colored filter segments located between the scanning element and the color image enables the scanning element to produce electrical signals which are representative of different colors in the color image. The color filter is rotated at a rate such that each filter segment is interposed between the scanning element and the color image for a rotation period which is greater than the reciprocal of the flicker rate. The electrical signals are integrated in the scanning element for a first period (e.g., 8.33 milliseconds) during each rotation period, and are transferred from the scanning element to a memory during a second period (e.g., 2.67 milliseconds) during each rotation period.

REFERENCES:
patent: 4628350 (1986-12-01), Aughton et al.
patent: 4736251 (1988-04-01), Sasaoka
patent: 4737857 (1988-04-01), Rucci et al.
patent: 4769693 (1988-09-01), Kato
Ampex Corporation, The BC-210 Studio Color Camera, Product Literature, Jun. 1969, Four pages (unnumbered).
L. L. Niemyer, Jr., et al., "Apollo Television Cameras", Journal of the Smpte, Oct. 1970, vol. 79, No. 10, pp. 926-930.

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