The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 1988
Filed:
Dec. 22, 1986
Gregory E Bell, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A scanner with scanning array on a movable carriage, a control for regulating the scanning speed of the carriage, a small buffer between the scanner and a workstation, a buffer capacity sensor for continuously monitoring the residual capacity of the buffer, a motion sensor for actuating the array to scan an image line each time the carriage moves a distance of one scan line, and a controller for regulating scanning speed of the carriage to substantially match the image signal output rate of the array with the image signal input rate of the workstation while maintaining a predetermined level of buffer residual capacity, the controller reducing carriage scanning speed as buffer residual capacity decreases in order to maintain the scanner operating as long as possible in the event workstation demand ceases and minimize carriage acceleration/deacceleration forces on scanner noise, vibration, and image quality.