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:
Apr. 16, 1985
Filed:
Jun. 16, 1982
Applicant:
Inventor:
Susumu Watanabe, Kawasaki, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
364491 ; 250398 ; 2504923 ; 364571 ;
Abstract
Dot pattern data stored in the first dot pattern memory is read out by a predetermined number of successive bits at a time under the control of a microprocessor and corrected with respect to an X direction. The corrected dot pattern data is temporarily stored in a main memory. The dot pattern data stored in the main memory is then corrected with respect to a Y direction. The resultant corrected dot pattern data is stored in a second dot pattern memory for use for electron beam blanking control.