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:
Nov. 03, 1992
Filed:
Oct. 11, 1990
Applicant:
Inventor:
David Birnbaum, Pittsford, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03F / ;
U.S. Cl.
CPC ...
358 79 ;
Abstract
An apparatus which determines the intensity of signals generated by a raster input scanner. The signals are inputted to a delay circuit and to a gray detector. The signals generated from the delay circuit and the gray detector are subsequently sent to a logic circuit which determines whether to output a gray signal or a non-gray signal to a raster output scanner used to expose a charged photoconductive surface to record a latent image thereon.