Carriage speed control for a raster scanner

Details Carriage speed control for a raster scanner Carriage speed control for a raster scanner

1979-10-12

1981-10-13

Orsino, Jr., Joseph A.

Facsimile and static presentation processing

Facsimile

Recording apparatus

318270, 318318, 358267, H04N 104

Patent

active

042951674

ABSTRACT:
An image input terminal (IIT) with automatic document handler for feeding documents to be scanned into registered position on the IIT platen. The IIT includes a pair of multi-element scanning arrays with cooperating scan lamp and optics on a movable carriage disposed in scanning relationship with the platen. Video image signals generated by the scanning arrays are initially processed in separate channels and then combined into a serial stream. The stream of video image signals may optionally be thresholded or screened to provide binary level image signals or converted to multi-bit gray scale.
A control system including microprocessor provides timing and control signals for synchronizing operation of the scanning carriage, document handler, and image signal reading and processing together with electronic crossover between arrays to avoid loss of data, automatic signal gain control, and deletion of bad image signals or pixels. On board array alignment apparatus permits adjustment of array focus, skew, height, position and overlap.

REFERENCES:
patent: 3176208 (1965-03-01), Gifft
patent: 3655914 (1972-04-01), Gifft et al.
patent: 3836833 (1974-09-01), Harris et al.

Affiliated with

Also associated with

Rating

Carriage speed control for a raster scanner does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carriage speed control for a raster scanner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carriage speed control for a raster scanner will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-934140