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:
Oct. 24, 1995
Filed:
Dec. 29, 1993
Applicant:
Inventor:
Greg A Degi, Fort Collins, CO (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358482 ; 358483 ; 257234 ; 2502081 ; 348298 ;
Abstract
The present invention improves the scanning speed (i.e., the line exposure time) of an image scanner that is operated at a lower than normal resolution. The image scanner contains a charge coupled device (CCD) that stores a plurality of pixel charges. Before digitizing the pixel charges, the present invention combines two or more of these pixel charges. Thus, the effective resolution of the CCD can be divided by a designated amount, thus reducing processing time and keeping signal levels nearly constant.