Optical image reading apparatus capable of reading multi-colored

Details Optical image reading apparatus capable of reading multi-colored Optical image reading apparatus capable of reading multi-colored

1988-10-20

1991-06-04

Coles, Sr., Edward L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358448, 358461, 358474, H04N 146

Patent

active

050218778

ABSTRACT:
An optical image reading apparatus for photoelectrically reading images formed in at least two colors on a surface of an original having a base color different from the at least two colors, including a first reading device for obtaining a first image signal for each of a multiplicity of reading spots in a predetermined area on the original. The first image signal has two different levels one of which corresponds to the base color and the other of which corresponds to the at least two colors. The apparatus further includes a second reading device for obtaining a second image signal for the each reading spot. The second image signal cooperates with the first image signal to discriminate each of the at least two colors from the other of the at least two colors. Provisions are made for determining whether the levels of the first image signals for all of the multiplicity of reading spots are equal to the above-indicated one level corresponding to the base color, or not. If so, the second reading device is inhibited from operating to obtain the second inage signal for each reading spot.

REFERENCES:
patent: 4458264 (1984-07-01), Tamura
patent: 4490740 (1984-12-01), Moriguchi
patent: 4560866 (1985-12-01), Takenouchi
patent: 4577218 (1986-03-01), Kurata
patent: 4718768 (1988-01-01), Houki
patent: 4748680 (1988-05-01), Margolin
patent: 4812900 (1989-03-01), Kadowaki
patent: 4831458 (1989-05-01), Watanabe
patent: 4855753 (1989-08-01), Ichikawa et al.

Affiliated with

Also associated with

Rating

Optical image reading apparatus capable of reading multi-colored does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical image reading apparatus capable of reading multi-colored, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical image reading apparatus capable of reading multi-colored will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1030608