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:
Dec. 10, 1991
Filed:
May. 11, 1989
Applicant:
Inventors:
Charles E Dellinger, Knoxville, TN (US);
John C Pryzbyszewski, Knoxville, TN (US);
Donald B Wolter, Gatlinburg, TN (US);
Assignee:
North American Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340750 ; 340734 ; 340735 ;
Abstract
A character-based display controller, which is capable of providing variable width text characters, includes a ROM embedded with pattern and attribute codes, and a logic control circuit enabling multiple modes of interpreting the data in the character memory. The logic control circuit also enables bypassing the character memory thereby permitting a bit-mapped display mode.