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:
Sep. 19, 2000
Filed:
Jun. 05, 1992
Applicant:
Inventor:
Hideki Tanaka, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ; B41J / ;
U.S. Cl.
CPC ...
347 12 ; 347 15 ;
Abstract
In a recording apparatus, two-level halftoning processing of input image data is performed in such a manner that the input image data is compared by a comparator with a threshold value stored in a threshold memory, and the results of the comparison are stored as driving data in nozzle memories corresponding to recording elements. This two-level halftoning processing is performed (n-1) times, thereby n-level halftoning processing of the input image data is performed.